Pea-hulling machine.



No. 808,568. PATENTED DBG. 26, 1905.

` E. Hl MGMURRY.

PBA HULLING MACHINE. APPLICATION FILED JUNE s, 1905.

a slums-SHEET 1.

Witnesses r ,2g/j Inventor.

, E, Attorn eys 10.808,568. PATBNTBD DEC. 2s, 1905,.

- E. H. MCMURRY.

PEA HULLING MACHINE.

APPLICATION FILED JUNI: e, 1905.

3 SHEETS-SHEET 2.

Witnesses l lnventr.

. L/if r l Attorneys No. 808,568. PATBNTED DBO. 26, 1905. E. H. MGMURRY.

PEA HULLING MACHINE.

l APPLICATION FILED JUNBG, 1905.

3 SHEETS-SHEET 3.

EMMET H. MCMURRY, OF PEDEE, ARKANSAS.

PEA-HULLING MACHINE.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed Tune 6, 1905. Serial No. 264,009.

To all whom it may concern:

Be it known that I, EMMET H. MCMURRY, a citizen of the United States, residing at Pedee, in the county of Lee and State of Arkansas, have invented anew and useful Pea-Hulling Machine, of which the following is a specification.

This invention relates to machines for hulling or threshing peas 3 and it has for its object ro to present a machine of this class which shall possess superior advantages in point of simplicity, durability, and general efficiency.

Other objects of the invention are to insure an even, regular, and steady feed of material to the threshing or hulling cylinders, to prevent the material that is to be operated upon frombecoming packed in the feed-hopper, to provide improved separating means, and` to generally simplify and improve the zo construction of the machine.

lith these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

A In the accompanying drawings has been illustrated a simple and preferred form of the 3o invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that the right is reserved to any changes, alterations, and modifications to which recourse may be had within the scope of the invention and without departing from the spirit or sacrificing the efficiency of the same.

In said drawings, Figure 1 is a longitudinal vertical sectional view of a pea-hulling machine constructed in accordance with the principles of the invention. Fig. 2 is a vertical transverse sectional view taken on the plane indicated by the line 2-2 in Fig. 1. Fig. 3 is a horizontal sectional view taken on the plane indicated by the line 3 3 in Fig. 1. Fig. 4 is a detail plan view showing a portion of the hopper in section. tive detail view of the member constituting the upper part of the casing of the hullingcylinders.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

The casing C of the improved machine is composed of an upper and a lower section,

(designated, respectively, U and L,) said sec- Fig. 5 is a perspections being hingedly connected, so that the upper section may readily be laid open to afford access to the interior of the casing. The

hinges 1 have been shown as located at one end of the casing; but it is obvious that they may be located at either end or side, the opposite end or side being provided with locking means, such as a hoop and staple 2 3, for the purpose of connecting the free ends of the sections firmly together when the machine is in operation. Upon the top 4 ofthe upper section is supported a feed-hopper 5, having a throat 6, in which a shaft 7 is supported for rotation. The shaft 7 carries within the throat a feed wheel or disk 8,which is provided with laterally-extending prongs or teeth 9, cooperating with prongs or teeth 10, that extend laterally from the sides of the throat. The upper portion of the disk 8 eX- tends into the lower part of the hopper, and the latter is provided in the side walls 11 thereof with apertures affording bearings for a pair of slides 12, having upwardly-extend.- ing teeth 13.

One of the side walls of the hopper is provided with a bracket 14, upon which is ful'- crumed a lever 15, with which the outer ends of the slides l2 are connected, the connection being of sufiicient looseness to enable the slides to be freely reciprocated when the lever 15 is oscillated upon its fulcrum. The

4free end o f the lever 15 is provided with a collar 16, having pivotal connection with one end 0f a pitman 17, the other end of which engages a crank 18 upon the shaft 7. It will be seen that when the latter is rotated the feed-disk 18 will be -rotated within the throat and the lower portion of the hopper, while the toothed slides l2 will be. reciprocated in the lower part of the hopper adj acent to the upper portion of the feed wheel or disk. Material contained in the hopper will thus be loosened and agitated until it comes within the range of the teeth or prongs upon the feed-disk, which latter in addition to the laterally-extending teeth 9 has been shown as provided with radially-extending teeth 9.

Connected with the under side of the top member 4 is a downwardly-extending chute 19, the end'walls of which are provided with bearings for a rock-shaft 20, having at one end a crank 21, provided with a wrist-pin 22, which is connected by a pitman 23 with a wrist-pin 24 upon the end of the shaft 7. The crank 25 is shorter than the crank 21 so IOO IIO

is nearest the said main shaft.

that by the rotary motion of the shaft 7 an oscillatory motion will be imparted to the rock-shaft 20. Supported upon the latter andl retained in position adjustably by set screws 26 are feeders consisting of segments 27, having downward-extending radial teeth The lower part of the casing of the machine is provided with bearings for a pair of transverse shafts 29 and 30, each carrying a cylinder 31, provided with radially-extending teeth 32. These cylinders rotate within casings the lower parts of which consist of semicylindrical concaves 33, provided on their inner sides with teeth 34. The upper parts of the cylinder-casings, which are designated 35, are comprised in a detachable casing member S, which is shown in detail in Fig. 5 of the drawings and which includes in addition to the concave members 35 the end members 36,wliereby said concave members are connected, a chute 37, communicating with the lower end of the chute 19, and an inverted-V-shaped partition 38, the lower edges of which engage the lower edges of slots 40, formed in the members 35 of the cylinder-casings for the admission of the material which is to be operated upon and which is supplied to the casings through said slot 4() by the reciprocatory action of the feeders 29, which are supported above and in alinement with said slots. The concaves 33, oonstituting the lower parts of the cylinder-casing, are provided with discharge-slots 31. The threshed material passing through said discharge-slots is conveyed by a chute or hopper 42 and through a slot' 43 in the floor 44 of the casing to the separator P, which is located beneath said floor and which will be presently more fully described.

The sides of the casing of the machine have bearings for a suitably-driven main shaft 45, carrying at one end means, such as a crankdisk 46, whereby it may be driven, and at the other end a spur-wheel 47, meshing with a pinion 48 upon the cylinder-shaft 29,which The cylinder-shafts 29 and 30 are provided with intermeshing spur-wheels 49 and 50, whereby the cylinders will be driven in the proper direction both at the same speed. The sides of the casing also have bearings for a trans-Y verse shaft 51, carrying a pinion 52, meshing with the spur-wheel 47. Said shaft is also provided within the casing with a sprocketwheel 53, connected by a link belt 54 with the sprocket-wheel 55 upon a shaft 56, which is supported for rotation in a frame 57 upon the top 4 of the casing, the link belt 54 passing through a slot 58 in the top 4. The shaft 56, which is thus directly driven, carries a bevel-pinion 59, meshing with a bevel-pinion 60 upon the shaft 7, to which latter rotary movement may thus be imparted. The pinion 6() has a hub 61 provided with an annular groove 62, in which is fitted`a collar 63, the latter being pivotally connected with a bifurcated lever 64, having a stop member 65, engaging a rack-segment 66, supported upon the frame. This constitutes a shipping-lever, whereby'the pinion 60, with its hub 61, which are longitudinally slidable upon the shaft 7 and connected with the latter by means of a feather 67, may be thrown into or out of engagement with the bevelpinion 59 thus throwing the feed mechanism into or out of operation, as may be desired.

The separating part P of the machine, which is supported beneath the floor 44 of the casing proper, includes a fan-casing 68, having bearings for a shaft 69, carrying a fan 70. The upper portion of the fan-casing is formed by the floor 44, and the discharge-throat of the casing is formed partly by the floor 44, partly by a throat member 71, extending rearwardly from the fan-casing, and partly by the side members 72. The throat which is thus formed receives the material discharged through the slot 43 at the lower end of the chute 42, said material being subjected to the influence of the rearward blast of the fan. The bottom throat member 71 is inclined downwardly and forwardly in the direction of the fan-casing, and it has a transverse slot 73, disposed forwardly of the slot 43,V and under said slot 43 is supported an inclined chute 74, through which the peas are discharged at one side of the casing of the machine. Beneath the rearward part of the lower throat member 71 is supported an apron 75, having at its rearward end an upturned lip 76 and connected at its front end with a slot 77 in the rear side of the chute 74.

At the rear or discharge end of the casing is supported a tubular discharge-spout 78, the lower end of which rests upon the lip 76 and the upper end of which is equipped with a bag-holder 79, having a screen 80. The tubular member 78 is provided at its lower edge with notches 81, engaging the lip 76. Said casing is also provided on its under side with ratchets 81 for adjustable engagement with a supporting-bail 82, connected with the casing of the machine.

Within the members U and L of the casing is a vertical longitudinal partition 83, which separates the space 84, occupied by the operating mechanism, from the comparatively narrow space 85, occupied by the gearing. By this arrangement the danger of obstruction of the gearing by the material operated upon will be largely avoided.

From the foregoing description, taken in connection with the drawings hereto anneXed, the operation and advantages of this invention will be readily understood by those skilled in the art to which it appertains. The vines 'are supplied to the hopper 5, from which by the conjoint action of the feed-disk and the toothed reciprocatory slides it is fed IOO IIO

IIS

into the chute 19, which latter is of considerable capacity, thus enabling the material to be thoroughly loosened up as it drops therein. The material is next subjected to the action of the feeders 27, whereby it will be fed through the slots 40 into the cylynder-casings, from which after being thoroughly belabored, beaten, and threshed by the conjoint action of the toothed cylinders and the toothed casings or concaves it finally escapes through the slots 41 in the lower parts of said concaves into the chute 42 and through the slot 43 into the throat of the fan, where it is immediately subjected to the rearward action of the blast. The peas which have been separated from the hulls will roll down through the slot 7 3 into the chute 74 and escape over the discharge end of the latter. A portion of the peas, however, will be carried with the halm and chaff in the direction of the discharge end of the machine, but will be checked by the upstanding lip 76 and caused te be returned by rolling over the apron 75 into the chute 74. The halm, cha, and lighter particles will be blown out through the tubular member 7 8, and the greater portion of such peas as still remain and which will naturally settle downward by gravity will escape through the meshes of the screen 79 into the bag or receptacle 8O and will thus be saved, while the light and worthless material is blown over the screen 79.

At any time during the operation of the machine the feed mechanism may be stopped by simply manipulating the shipping-lever 64. This may occasionally be found desirable in the event of overfeed. In case of stoppage, owing to obstructions of any kind, the upper partUof the casing may be thrown open and the frame member S may be removed, thus laying bare the cylinders and concaves, so that any necessary examination and repairs may be made.

The fan is shown as driven by means of a belt 90, connecting a pulley 91 upon the fanshaft with a pulley 92 upon the shaft 29.

I-Iaving thus described the invention, what is claimed is- 1. A feed-hopper, a toothed disk supported for rotation therein, and toothed slides supported for reciprocation adjacent to the disk.

2. A feed-hopper having a throat, a toothed disk supported for rotation in the throat and extending into the hopper, toothed slides supported for reciprocation in the hopper adjacent tothe disk, a bracket upon the hopper, a lever supported upon said bracket and connected pivotally with the slides, and means for operating the lever.

3. In a pea-huller, hulling mechanism comprising a pair of cylindrical casings having discharge-slots in their lower portions and receiving-slots connected by a deiiector, an expansion-chute, connected with the receiving-slots, oscillatory feed mechanism in said expansion-chute, and means for supplying material to the latter.

4. In a pea-huller, a hopper having a throat, a shaft supported for rotation in said throat, a feed-disk upon said shaft, hulling mechanism, an expansion-chamber connecting the casing of the hulling mechanism with the throat of the hopper, a rock-shaft in said expansion-chamber, feeders upon said rockshaft adjustable in alinement with inlets in the casing of the hulling mechanism, and means for transmitting motion from the diskcarrying shaft in the throat of the hopper to the rock-shaft carrying the feeders.

5. In a pea-huller, the combination with hulling mechanism, of a fan, a throat extending from the casing of said fan and having an inclined bottom provided with a transverse slot, a chute beneath said sl'ot, means for conveying the material operated upon by the hulling mechanism into said throat in rear of the slot, and an apron supported beneath the rear portion of the bottom of the throat; said apron having an upturned lip at its rear end and connected at its front end with a slot in the chute.

6. A huller-casing having a floor, a separater-casing supported beneath said floor and having an inclined bottom provided with a transverse slot, a chute beneath said slot, means for conveying material from within the huller-casing into the separator-casing, means for intercepting valuable material at the rear end of th'e separating-casing and returning said material to the discharge-chute, a tubular outlet adjustably connected with the rear end of the separator-casing, a bagholder connected with said tubular outlet, and a screen connected with the bag-holder.

7. A separator-casing having a throat, an apron supported beneath said throat and having an upturned lip, and a tubular dis- 1charge member having notches engaging said 8. A separator-casing having a throat, an apron supported beneath said throat and having an upturned lip, and a tubular discharge member having notches engaging and a bottom portion resting upon said lip.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

EMMET H. MCMURRY.

Witnesses:

Gr. H. LEARY, J. L. WEST.

TOO 

